js实现浏览器全屏与退出

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兼容 Firefox、Chrome、IE

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function fullScreen () {
    var el = document.documentElement;
    var rfs = el.requestFullScreen || el.webkitRequestFullScreen ||
        el.mozRequestFullScreen || el.msRequestFullScreen;
    if (typeof rfs != "undefined" && rfs) {
        rfs.call(el);
    } else if (typeof window.ActiveXObject != "undefined") {
        //for IE，这里其实就是模拟了按下键盘的F11，使浏览器全屏
        var wscript = new ActiveXObject("WScript.Shell");
        if (wscript != null) {
            wscript.SendKeys("{F11}");
        }
    }
}

function exitFullScreen () {
    var el = document;
    var cfs = el.cancelFullScreen || el.webkitCancelFullScreen ||
        el.mozCancelFullScreen || el.exitFullScreen;
    if (typeof cfs != "undefined" && cfs) {
        cfs.call(el);
    } else if (typeof window.ActiveXObject != "undefined") {
        //for IE，这里和fullScreen相同，模拟按下F11键退出全屏
        var wscript = new ActiveXObject("WScript.Shell");
        if (wscript != null) {
            wscript.SendKeys("{F11}");
        }
    }
}

$('#fullScreen').click(function () {
	fullScreen();
	$(this).hide(0);
	$('#exitFullScreen').show(0);
})
$('#exitFullScreen').click(function () {
	exitFullScreen();
	$(this).hide(0);
	$('#fullScreen').show(0);
})